There are two identical batteries in series, which statement is true?( )
A: The total voltage equals the sum of the voltages of each battery.
B: The total voltage equals any battery voltage.
C: The total voltage equals half of one battery voltage
A: The total voltage equals the sum of the voltages of each battery.
B: The total voltage equals any battery voltage.
C: The total voltage equals half of one battery voltage
举一反三
- ___battery is ___device which gives ___constant voltage (恒定电压).
- Ohm’s Law states that current equals voltage divided by resistance. Current increases with the increase in voltage. Current decreases with the increase in resistance.
- 在电阻串联电路中，如果某一个电阻开路，则（ ）In a series resistive circuit, if a resistance is open, ( ) A: 总电流为0 the total current is 0 B: 总电阻为∞，the total resistance is ∞ C: 开路处的电压等于电源电压the opened-resistor voltage is equal to the supply voltage D: 开路处的电压等于0 the opened-resistor voltage is equal to 0
- Which component in the ignition circuit provides high voltage in the secondary circuit? A: Ballast resistor B: Ignition coil C: Battery D: Ignition distributor
- For a neutral-unearthing system, during a bolted single line-to-ground fault, the non-fault phase voltage and the fault phase voltage are ()respectively. A: phase voltage and zero B: phase voltage and line-to-line voltage C: line-to-line voltage and phase voltage D: line-to-line voltage and zero